refractor in a sentence

Examples

1. The basic SOON telescope is a evacuated refractor mounted on a polar axis.
2. A soft tissue refractor is used to allow for greater visibility and access.
3. There's also a desperate need for a Coffee Table Book Lighting Refractor.
4. Amateur astronomers use such instruments as the Refractor and the increasingly popular Maksutov telescope.
5. An auto-refractor is a computerized instrument that shines light into an eye.
6. The binocular auto-refractor measures sphere, cylinder, axis and pupillary distance.
7. It is housed in a building about 100 feet northwest of the Clark refractor.
8. It was donated to the refractor in 1966.
9. It was discovered by Lewis Swift in 1886 with a 16-inch refractor.
10. Orion offers a similar refractor model for less than $ 100 on its Web site.